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با ما تماس بگیریدEven small amounts of lead can cause serious health problems. Children younger than 6 years are especially vulnerable to lead poisoning, which can severely affect mental and physical development. At very high levels, lead poisoning can be fatal. Lead-based paint and lead-contaminated dust in older buildings are common sources of lead poisoning ...
The primary purpose of this chapter is to provide public health officials, physicians, toxicologists, and other interested individuals and groups with an overall perspective on the toxicology of manganese. It contains descriptions and evaluations of toxicological studies and epidemiological investigations and provides conclusions, where possible, on the relevance of toxicity and …
Kumari et al. [] has described the mean exposure level of quartz in coal mining (JCF) and metal mines such as Zn and Mn with comparative health risks as per Indian and US standards.The related health risks are minimal in coal mines and highest in zinc mines due to higher percentage of quartz in dust samples (Table 4).The highest quartz for zinc mines is …
Gravel Road Dust and Society. In addition to health, dust has a negative impact on local economies. On a personal level, as we saw in many of the common complaints by residents in the introduction to this article, dust damages vehicles and other equipment, hurts gardens and necessitates extensive cleaning and even landscaping.
Dust storms and sandy dust events originating in arid and semi-arid areas can transport particulate material, pollutants, and potential transport long distances from their sources. Exposure to desert dust particles is generally acknowledged to endanger human health. However, most studies have examined anthropogenic particulate sources, with few studies …
Dust particles are ubiquitous pollutants in the work environment of steel industry and are generated from iron ore, coke, and manganese processing steps. Potential association between occupational air pollutants, such as dust and heavy metals, and potential health effects has been a subject of research in several previous studies.
The purpose of this study was to determine the effects of road dust on human health. A PubMed search was used to extract references that included the words "road dust" and "health" or "fugitive dust" and "health" in the title or abstract. A total of 46 references were extracted and selected for review after the primary screening ...
Although it is acknowledged that heavy metals have many adverse health effects and last for a long period of time, heavy metal exposure continues and is increasing in many parts of the world. ... Cr dust and Cr waste water irrigation, ... Vuori K-M. Direct and Indirect effects of iron on river eco systems. Annal Zoo Fennici. 1995; 32:317–329.
Inorganic dust includes mineral dust, metal dust, and artificial inorganic dust; organic dust includes biological dust, plant dust, and animal dust. It is a major harmful occupational hazard that pollutes the working environment and harms the health of workers, leading to the development of various occupational lung diseases.
The lungs can react to the presence of germ-bearing particles by producing certain proteins. These proteins attach to particles to neutralize them. Dusts are tiny solid particles scattered or …
Iron oxide dust and fume (as Fe) Reddish-brown solid. [Note: Exposure to fume may occur during the arc-welding of iron.] NIOSH. (APF = 10) Any particulate respirator equipped with an N95, R95, or P95 filter (including N95, R95, and P95 filtering facepieces) except …
Basis for original (SCP) IDLH: The available toxicological data contain no evidence that an acute exposure to iron oxide fume would impede escape or produce any irreversible …
Aluminum is the most abundant metal and the third most abundant element, after oxygen and silicon, in the earth's crust. It is widely distributed and constitutes approximately 8 percent of the earth's surface layer. However, aluminum is a very reactive element and is never found as the free metal in nature. It is found combined with other elements, most commonly with oxygen, …
Exposure to iron dust and welding fumes is widespread and may increase the risk of lung inflammation. The aim of this study was to identify associations between exposure to iron/welding fumes and the levels of inflammatory parameters and allergic mediators among 120 Egyptian men. ... Arch Environ Occup Health. 2018 May 4;73(3):189-202. doi: 10. ...
Health Effects. Adverse health effects associated with Cr(VI) exposure include occupational asthma, eye irritation and damage, perforated eardrums, respiratory irritation, kidney damage, liver damage, pulmonary congestion and edema, upper abdominal pain, nose irritation and damage, respiratory cancer, skin irritation, and erosion and discoloration of the teeth.
Iron ore mining is known to release iron oxide dust, and many researchers have focused on this occupation to elucidate the potential adverse outcomes associated with iron oxide particulate exposure. ... Therefore, IONPs may have increased potential to induce adverse health effects as compared to their fine/micron-sized counterparts. However ...
Doctors and public health experts agree that breathing fine particulate matter (PM 2.5) can be harmful to human health.The airborne particles—thirty times smaller than the width of human hair—can pass easily into the lungs and bloodstream, where they can increase a person's risk of dying from heart disease, stroke, lung cancer, chronic obstructive pulmonary disease, …
Welders also may have chronic respiratory problems, including bronchitis, asthma, pneumonia, emphysema, pneumoconiosis (dust-related diseases, decreased lung capacity, silicosis [caused by silica exposure], and …
Breathing. Those exposed to metal dust may be at a higher risk of developing chronic lung conditions. Prolonged exposure to metal dust like steel, iron and cobalt can result in lung conditions such as siderosis and black lung.
The National Institute for Occupational Safety and Health has set a limit of 5 mg of iron oxide dust or fumes per cubic meter of air or m^3. This limit is the maximum average concentration of ferric oxide in air that a worker can inhale without requiring protective equipment over the course of a workday.
Relevant in vivo studies suggest that pulmonary exposure to IONPs may induce inflammation, pulmonary fibrosis, genotoxicity, and extra-pulmonary effects. This …
concerning health effects associated with coal mining: 1. Exposure to coal mine dust causes various pulmonary diseases, including coal workers' pneumoconiosis (CWP) and chronic obstructive pulmonary disease (COPD). 2. Coal miners are also exposed to crystalline silica dust, which causes silicosis, COPD, and other diseases. 3.
Saharan dust nutrients, particularly iron, deposited episodically in tropical marine waters stimulate marine microbial bloom growth and change microbial community structure. ... the research reported here did not assess the health effects or exposures to pathogens.
Both cigarette smoking and long-term exposure to crystalline silica dust were reported to be associated with increased mortality. However, the combined effect of both factors has not been well evaluated. We investigated a retro-prospective cohort of 7,665 workers from one Chinese iron mine with a median follow-up of 42.8 years. Cumulative silica exposure was …
A significant decline in FEV 1 (in relation to years of exposure of respirable dust) has been reported among tunnel workers 28 and hard metals workers. 37 Furthermore, acceleration of …
There remains a paucity of data about the respiratory health effects from exposure to iron ore dust generated by mining. The aim of this novel study was to examine respiratory …
OSHA disagrees with Mr. Hernandez' assessment of the health effects potentially associated with exposure to iron oxide because the Agency believes that any occupational exposure that causes foreign substance to lodge in body tissues is undesirable. However, the Agency concurs with NIOSH's Dr. Brooks (NIOSH 1986b, p. 425) that additional ...
High levels of dust at two of BHP Group's iron ore mines in Western Australia are impairing the health of workers and nearby residents, a union said this week, as BHP said it had undertaken a ...
Iron dust may have played a significant role in the last ice age, and it could be an important factor in mitigating future global temperature increases. Emily Underwood, Knowable Magazine....
[Adverse health effects of industrial iron dust on respiratory system] [Adverse health effects of industrial iron dust on respiratory system] Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi. 2016 Nov 20;34(11):870-873. doi: 10.3760/cma.j.issn.1001-9391.2016.11.027. ...
There is significant iron deposition in the oceans, approximately 14–16 Tg annually from mineral dust aerosols, but only a small percentage (approx. 3%) of it is soluble and, thus, bioavailable. In this work, we examine the effect of mineralogy, particle size, and surface area on iron solubility in pure mineral phases to simulate atmospheric processing of mineral …
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